Goodman CPC, CPH User Manual
I
NSTALLATION INSTRUCTIONS
L
IGHT
P
ACKAGED
C
OMMERCIAL
H
EATING
S
ELF
& C
-C
ONTAINED
OOLING
F
OR
U
NIT
3 T
ON
- 6 T
ON
CPC/CPH S
ERIES
RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.
ATTENTION INSTALLING PERSONNEL
Prior to installation, thoroughly familiarize yourself with this Installation Manual. Observe all safety warnings.
During installation or repair, caution is to be observed.
It is your responsibility to install the product safely and to educate the customer on its safe use.
All information contained herein is subject to change without notice.
These installation instructions cover the outdoor
installation of single package electric heating and
cooling units. See the Specification Sheet applicable
to your model* for information regarding accessories.
Goodman Manufacturing Company, L.P.
IO-399A 5151 Felipe, Suite 500, Houston, TX 77056
5/12 www.goodmanmfg.com www.amana-hac.com
© 2010,2012 Goodman Manufacturing Company, L.P.
*NOTE: Please contact your distributor or
our website for the applicable
Specification Sheet referred to in
this manual.
Index
REPLACEMENT PARTS
Replacement Parts ........................................................ 2
Safety Instructions ........................................................ 2
General Information ...................................................... 3
Unit Location ................................................................. 4
Clearances ..................................................................... 5
Roof Curb Post-Installation Checks ............................ 5
Roof Top Duct Connections ......................................... 6
Rigging Details .............................................................. 6
Electrical Wiring ............................................................ 8
Circulating Air and Filters ........................................... 10
Venting ......................................................................... 10
Condensate Drain Connection ................................... 10
Startup, Adjustments, and Checks ............................ 10
Heat Pump Operation .................................................. 13
Air Flow Adjustments.................................................. 14
Drive Adjustments ....................................................... 15
Motor Sheave Adjustments ........................................ 15
ORDERING PARTS
When reporting shortages or damages, or ordering repair
parts, give the complete unit model and serial numbers
as stamped on the unit’s nameplate.
Replacement parts for this appliance are available
through your contractor or local distributor. For the
location of your nearest distributor, consult the white
business pages, the yellow page section of the local
telephone book or contact:
CONSUMER AFFAIRS
GOODMAN MANUFACTURING COMPANY, L.P.
7401 SECURITY WAY
HOUSTON, TEXAS 77040
877-254-4729
SAFETY INSTRUCTIONS
TO THE INSTALLER
Before installing this unit, please read this manual to
familiarize yourself on the specific items which must be
adhered to, including maximum external static pressure
to unit, air temperature rise, minimum or maximum CFM
and motor speed connections.
Keep this literature in a safe place for future reference.
Maintenance ................................................................ 15
Service ......................................................................... 16
Appendix A Blower Performance Tables ................... 17
Direct Drive .............................................................. 17
Standard Down Shot and Horizontal (036) ........ 17
Standard Down Shot and Horizontal (048) ........ 18
Standard CPC/H060 Down Shot ......................... 19
Standard CPC/H060 Horizontal .......................... 20
Belt Drive ................................................................. 21
Standard Down Shot ........................................... 21
High Static Down Shot ........................................ 22
Standard Horizontal ............................................ 23
High Static Horizontal ......................................... 24
Appendix B Electrical Data ......................................... 25
Appendix C Unit Dimensions ..................................... 27
CAUTION
S
HEET METAL PARTS, SCREWS, CLIPS AND SIMILAR ITEMS INHERENTLY
HAVE SHARP EDGES, AND IT IS NECESSARY THAT THE INSTALLER AND
SERVICE PERSONNEL EXERCISE CAUTION
.
WARNING
DO
NOT CONNECT TO OR USE ANY DEVICE THAT IS NOT DESIGN
CERTIFIED BY GOODMAN FOR USE WITH THIS UNIT
PROPERTY DAMAGE, PERSONAL INJURY, REDUCED UNIT
PERFORMANCE AND/OR HAZARDOUS CONDITIONS MAY RESULT FROM
THE USE OF SUCH NON-APPROVED DEVICES
. S
ERIOUS
.
WARNING
T
HIS PRODUCT CONTAINS OR PRODUCES A CHEMICAL OR CHEMICALS
WHICH MAY CAUSE SERIOUS ILLNESS OR DEATH AND WHICH ARE
KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER, BIRTH
DEFECTS OR OTHER REPRODUCTIVE HARM
.
WARNING
TO
AVOID PROPERTY DAMAGE, PERSONAL INJURY OR DEATH, DO
NOT USE THIS UNIT IF ANY PART HAS BEEN UNDER WATER
I
MMEDIATELY CALL A QUALIFIED SERVICE TECHNICIAN TO INSPECT
THE FURNACE AND TO REPLACE ANY PART OF THE CONTROL SYSTEM
AND ANY GAS CONTROL HAVING BEEN UNDER WATER
2
.
.
WARNING
T
HIS UNIT MUST NOT BE USED AS A “CONSTRUCTION HEATER
DURING THE FINISHING PHASES OF CONSTRUCTION ON A NEW
STRUCTURE
OF THE UNIT DUE TO EXTREMELY LOW RETURN AIR TEMPERATURES
AND EXPOSURE TO CORROSIVE OR VERY DIRTY ATMOSPHERES
. T
HIS TYPE OF USE MAY RESULT IN PREMATURE FAILURE
”
.
WARNING
HIGH VOLTAGE!
ISCONNECT ALL POWER BEFORE SERVICING OR
D
INSTALLING THIS UNIT
BE PRESENT
DAMAGE, PERSONAL INJURY OR DEATH
. F
. M
AILURE TO DO SO MAY CAUSE PROPERTY
ULTIPLE POWER SOURCES MAY
.
WARNING
TO PREVENT THE RISK OF PROPERTY DAMAGE, PERSONAL INJURY, OR DEATH,
DO NOT STORE COMBUSTIBLE MATERIALS OR USE GASOLINE OR OTHER
FLAMMABLE LIQUIDS OR VAPORS IN TH E VICINITY OF T HIS APPLIAN CE.
NATIONAL CODES
This product is designed and manufactured to permit installation in accordance with National Codes. It is the installer’s
responsibility to install the product in accordance with National Codes and/or prevailing local codes and regulations.
The heating and cooling capacities of the unit should be
greater than or equal to the design heating and cooling loads
of the area to be conditioned. The loads should be calculated
by an approved method or in accordance with ASHRAE Guide
or Manual J - Load Calculations published by the Air Conditioning Contractors of America.
Obtain from:
American National Standards Institute
1430 Broadway
New York, NY 10018
System design and installation should also, where applicable,
follow information presented in accepted industry guides such
as the ASHRAE Handbooks. The manufacturer assumes no
responsibility for equipment installed in violation of any code
or regulation. The mechanical installation of the packaged
roof top units consists of making final connections between
the unit and building services; supply and return duct connections; and drain connections (if required). The internal
systems of the unit are completely factory-installed and tested
prior to shipment.
GENERAL INFORMATION
WARNING
TO
PREVENT PROPERTY DAMAGE PERSONAL INJURY OR DEATH, DUE
TO FIRE, EXPLOSIONS, SMOKE, SOOT, CONDENSATION, ELECTRIC
SHOCK OR CARBON MONOXIDE, THIS UNIT MUST BE PROPERLY
INSTALLED, REPAIRED, OPERATED, AND MAINTAINED
.
This unit is approved for outdoor installation ONLY.
Rated performance is achieved after 72 hours of operation. To assure that your unit operates safely and efficiently,
it must be installed, operated, and maintained in accordance with these installation and operating instructions,
all local building codes and ordinances.
EPA REGULATIONS
IMPORTANT: THE UNITED STATES E NVIRONMENTAL PROTECTION
AGENCY (EPA) HAS ISSUED VARIOUS REGULATIONS REGARDING
INTRODUCTION AND DISPOSAL OF REFRIGERANTS IN THIS
THE
. FAILURE TO FOLLOW THESE REGULATIONS MAY HARM THE
UNIT
ENVIRONMENT
SUBSTANTIAL
PASSAGE
PERFORM
QUESTIONS PLEASE CONTACT THE LOCAL OFFICE OF THE
ANY
EPA.
AND CAN LEAD TO THE IMPOSITION OF
FINES. BECAUSE REGULATIONS MAY VARY DUE TO
OF NEW LAWS, WE SUGGEST A CERTIFIED TECHNICIAN
ANY WORK DONE ON THIS UNIT. SHOULD YOU HAVE
Units are generally installed on a steel roof mounting curb
assembly which has been shipped to the job site for installation on the roof structure prior to the arrival of the unit. The
model number shown on the unit’s identification plate identifies the various components of the unit such as refrigeration
tonnage, heating input and voltage.
Carefully inspect the unit for damage including damage to
the cabinetry. Any bolts or screws which may have loosened
in transit must be re-tightened. In the event of damage, the
receiver should:
1. Make notation on delivery receipt of any visible
damage to shipment or container.
2. Notify carrier promptly and request an inspection.
3. In case of concealed damage, carrier should be
notified as soon as possible-preferably within 5 days.
4. File the claim with the following supporting documents:
a. Original Bill of Lading, certified copy, or indemnity
bond.
b. Original paid freight bill or indemnity in lieu thereof.
c. Original invoice or certified copy thereof, showing
trade and other discounts or reductions.
d. Copy of the inspection report issued by carrier
representative at the time damage is reported to the
carrier. The carrier is responsible for making prompt
inspection of damage and for a thorough
investigation of each claim. The distributor or
manufacturer will not accept claims from dealers for
transportation damage.
3
NOTE: When inspecting the unit for transportation damage,
remove all packaging materials. Recycle or dispose of the
packaging material according to local codes.
PRE-INSTALLATION CHECKS
Carefully read all instructions for the installation prior to installing unit. Ensure each step or procedure is understood
and any special considerations are taken into account before starting installation. Assemble all tools, hardware and
supplies needed to complete the installation. Some items may
need to be purchased locally.
UNIT LOCATION
• Allow minimum clearances from the enclosure for fire
protection, proper operation, and service access (see
Unit Clearances). These clearances must be
permanently maintained.
• When the unit is heating, the temperature of the return
air entering the unit must be between 50°F and 100°F.
GROUND LEVEL INSTALLATIONS ONLY:
• When the unit is installed on the ground adjacent to
the building, a level concrete (or equal) base is
recommended. Prepare a base that is 3” larger than
the package unit footprint and a minimum of 3” thick.
• The base should also be located where no runoff of
water from higher ground can collect in the unit.
WARNING
TO
PREVENT POSSIBLE EQUIPMENT DAMAGE, PROPERTY DAMAGE
PERSONAL INJURY OR DEATH, THE FOLLOWING BULLET POINTS MUST
BE OBSERVED WHEN INSTALLING THE UNIT
IMPORTANT NOTE: Remove wood shipping rails prior to
installation of the unit.
.
,
ALL INSTALLATIONS:
IMPORTANT NOTE: If a crankcase heater is used, the unit
should be energized 24 hours prior to compressor start up to
ensure crankcase heater has sufficiently warmed the compressor. Compressor damage may occur if this step is not followed.
NOTE: Appliance is shipped from factory for vertical duct
application.
Proper installation of the unit ensures trouble-free operation.
Improper installation can result in problems ranging from
noisy operation to property or equipment damages, dangerous conditions that could result in injury or personal property
damage and could void the warranty. Give this booklet to the
user and explain it’s provisions. The user should retain these
instructions for future reference.
• For proper operation and condensate drainage, the
unit must be mounted level.
• Do not locate the unit in an area where the outdoor
air will be frequently contaminated by compounds
containing chlorine or fluorine. Common sources of
such compounds include swimming pool chemicals
and chlorine bleaches, paint stripper, adhesives,
paints, varnishes, sealers, waxes (which are not yet
dried) and solvents used during construction and
remodeling. Various commercial and industrial
processes may also be sources of chlorine/fluorine
compounds.
• To avoid possible illness or death of the building
occupants, do NOT locate outside air intake device
(economizer, manual fresh air intake, motorized fresh
air intake) too close to an exhaust outlet, gas vent
termination, or plumbing vent outlet. For specific
distances required, consult local codes.
ROOF TOP INSTALLATIONS ONLY:
• To avoid possible property damage or personal injury,
the roof must have sufficient structural strength to carry
the weight of the unit(s) and snow or water loads as
required by local codes. Consult a structural engineer
to determine the weight capabilities of the roof.
• The unit may be installed directly on wood floors or
on Class A, Class B, or Class C roof covering material.
• To avoid possible personal injury, a safe, flat surface
for service personnel should be provided.
• Adequate clearances from the unit to any adjacent
public walkways, adjacent buildings, building openings
or openable windows must be maintained in
accordance with National Codes.
UNIT PRECAUTIONS
• Do not stand or walk on the unit.
• Do not drill holes anywhere in panels or in the base
frame of the unit. Unit access panels provide
structural support.
• Do not remove any access panels until unit has been
installed on roof curb or field supplied structure.
• Do not roll unit across finished roof without prior
approval of owner or architect.
• Do not skid or slide on any surface as this may
damage unit base. The unit must be stored on a
flat, level surface. Protect the condenser coil
because it is easily damaged.
ROOF CURB INSTALLATIONS ONLY:
Curb installations must comply with local codes and should
be done in accordance with the established guidelines of the
National Roofing Contractors Association.
Proper unit installation requires that the roof curb be firmly
and permanently attached to the roof structure. Check for
adequate fastening method prior to setting the unit on the
curb.
4
Full perimeter roof curbs are available from the factory and
are shipped unassembled. Field assembly, squaring, leveling and mounting on the roof structure are the responsibility
of the installing contractor. All required hardware necessary
for the assembly of the sheet metal curb is included in the
curb accessory.
WARNING
TO
PREVENT POSSIBLE EQUIPMENT DAMAGE, PROPERTY DAMAGE
PERSONAL INJURY OR DEATH, THE FOLLOWING BULLET POINTS MUST
BE OBSERVED WHEN INSTALLING THE UNIT
.
,
• Sufficient structural support must be determined prior
to locating and mounting the curb and package unit.
• Ductwork must be constructed using industry
guidelines. The duct work must be placed into the
roof curb before mounting the package unit. Our full
perimeter curbs include duct connection frames to be
assembled with the curb. Cantilevered type curbs
are not available from the factory.
• Curb insulation, cant strips, flashing and general
roofing material are furnished by the contractor.
The curbs must be supported on parallel sides by roof members. The roof members must not penetrate supply and return duct opening areas as damage to the unit might occur.
NOTE: The unit and curb accessories are designed to allow
vertical duct installation before unit placement. Duct
installation after unit placement is not recommended.
Adequate clearance around the unit should be kept for safety,
service, maintenance, and proper unit operation. A total clearance of 75” on the main control panel side of the unit is recommended to facilitate possible fan shaft, coil, and electric
heat. A clearance of 48” is recommended on all other sides
of the unit to facilitate possible compressor removal, to allow
service access and to insure proper ventilation and condenser
airflow. The unit must not be installed beneath any obstruction. The unit should be installed remote from all building
exhausts to inhibit ingestion of exhaust air into the unit fresh
air intake.
INSULATED
PAN ELS
CAUTION
ALL
CURBS LOOK SIMILAR
POSITIONING, CHECK JOB PLANS CAREFULLY AND VERIFY MARKINGS
ON CURB ASSEMBLY
SUPERSEDES INFORMATION SHOWN
. TO
AVOID INCORRECT CURB
. I
NSTRUCTIONS MAY VARY IN CURB STYLES AND
.
See the manual shipped with the roof curb for assembly and
installation instructions.
CLEARANCES
48”
48”
75”
ROOF CURB INSTALLATION
ROOF CURB POST-INSTALLATION
CHECKS
After installation, check the top of the curb, duct connection
frame and duct flanges to make sure gasket has been applied properly. Gasket should be firmly applied to the top of
the curb perimeter, duct flanges and any exposed duct connection frame. If gasket is loose, reapply using strong weather
resistant adhesive.
UNIT CLEARANCES
5
PROTRUSION
Inspect curb to ensure that none of the utility services (electric) routed through the curb protrude above the curb.
CAUTION
IF
PROTRUSIONS EXIST, DO NO ATTEMPT TO SET UNIT ON CURB
.
RIGGING DETAILS
WARNING
O PREVENT PROPERTY DAMAGE, THE UNIT SHOULD REMAIN IN AN UPRIGHT
T
T
POSITION DURING ALL RIGGING AND MOVING OPERATIONS.
LIFTING AND MOVING WHEN A CRANE IS USED, PLACE THE UNIT IN AN
ADEQUATE CABLE SLING.
O FACILITATE
ROOF TOP DUCT CONNECTIONS
Install all duct connections on the unit before placing the unit
on rooftop.
HORIZONTAL DISCHARGE
For horizontal discharge, remove the supply and return duct
covers and place them over the vertical discharge return and
supply openings. Install with insulation facing up, using the
longer screws provided in the literature package.
Ensure that the top of the duct connection frame is flush with
the top of the roof curb.
Flexible duct connectors between the unit and ducts are recommended. Insulate and weatherproof all external ductwork
and joints as required and in accordance with local codes.
11” 4 7 /8” ”
REMOVE
COVERS
17” 7 3/8”
RETURN
12”
HORIZONTAL DISCHARGE DUCT CONNECTIONS
SUPPLY
6 3/16”
25”
CAUTION
IF
UNITS ARE LIFTED TWO AT A TIME, THE FORK HOLES ON THE
CONDENSER END OF THE UNIT MUST NOT BE USED
LENGTH IS
IS RECOMMENDED
42” TO
PREVENT DAMAGE TO THE UNIT; HOWEVER
.
. M
INIMUM FORK
, 48”
Provisions for forks have been included in the unit base frame.
No other fork locations are approved.
WARNING
O PREVENT POSSIBLE EQUIPMENT DAMAGE, PROPERTY DAMAGE, PERSONAL
T
INJURY OR DEATH, THE FOLLOWING BULLET POINTS MUST BE OBSERVED
WHEN INSTALLING THE UNIT.
• Unit must be lifted by the four lifting holes located at
the base frame corners.
• Lifting cables should be attached to the unit with
shackles.
• The distance between the crane hook and the top of
the unit must not be less than 60”.
• Two spreader bars must span over the unit to prevent
damage to the cabinet by the lift cables. Spreader
bars must be of sufficient length so that cables do not
come in contact with the unit during transport.
Remove wood struts mounted beneath unit base
frame before setting unit on roof curb. These struts
are intended to protect unit base frame from fork lift
damage. Removal is accomplished by extracting the
sheet metal retainers and pulling the struts through
the base of the unit. Refer to rigging label on the unit.
Important: If using bottom discharge with roof curb, ductwork should be attached to the curb prior to installing the
unit. Ductwork dimensions are shown in Roof Curb Installation Instructions.
Refer to the Roof Curb Installation Instructions for proper curb
installation. Curbing must be installed in compliance with the
National Roofing Contractors Association Manual.
6
Lower unit carefully onto roof mounting curb. While rigging unit, center of gravity will cause condenser end to be lower
than supply air end.
To assist in determining rigging requirements, unit weights are shown as follows:
A
C
Y
B
CONDENSER
COIL
COMPRESSOR
X
CG
RETURN
EVAPORATOR COIL
SUPPLY
D
CORNER & CENTER OF GRAVITY LOCATIONS
Model
X
(in)Y(in)
Shipping Weight
(lbs)
Operating Weight
(lbs)
Corner Weights ( lbs )
ABCD
CPC036* 35 27 525 500 115 150 105 130
CPC048* 35 27 560 535 125 160 110 140
CPC060* 35 27 605 580 135 170 120 155
CPC072* 35 27 665 640 150 190 130 170
CPH036* 34 28 605 580 130 180 110 155
CPH048* 34 28 610 585 135 185 115 155
CPH060* 34 28 615 590 135 185 115 160
CPH072* 34 28 675 650 145 205 125 175
* Weights shown are belt drive with no accessories.
7
CAUTION
TO
PREVENT SEVERE DAMAGE TO THE BOTTOM OF THE UNIT, DO NOT
FORK LIFT UNIT AFTER WOOD STRUTS HAVE BEEN REMOVED
.
Bring condenser end of unit into alignment with the curb. With
condenser end of the unit resting on curb member and using
curb as a fulcrum, lower opposite end of the unit until entire
unit is seated on the curb. When a rectangular cantilever
curb is used, care should be taken to center the unit. Check
for proper alignment and orientation of supply and return openings with duct.
RIGGING REMOVAL
CAUTION
All line voltage connections must be made through weatherproof fittings. All exterior power supply and ground wiring
must be in approved weatherproof conduit.
The main power supply wiring to the unit and low voltage
wiring to accessory controls must be done in accordance with
these instructions, the latest edition of the National Electrical
Code (ANSI/NFPA 70), and all local codes and ordinances.
All field wiring shall conform with the temperature limitations
for Type T wire (63°F/35°C rise).
The unit is factory wired for the voltage shown on the unit’s
data plate. Refer to model nomenclature in Appendix D for
voltage requirement for your unit.
NOTE: If supply voltage is 208V, lead on primary of transformer must be moved from the 230V to the 208V tap. Refer
to wiring diagram on unit for details.
TO
PREVENT DAMAGE TO THE UNIT, DO NOT ALLOW CRANE HOOKS
AND SPREADER BARS TO REST ON THE ROOF OF THE UNIT
.
Remove spreader bars, lifting cables and other rigging equipment.
ELECTRICAL WIRING
WARNING
HI GH VOLTAGE!
ISCONNECT ALL POWER BEFORE SERVICING OR
D
INSTALLING THIS UNIT
BE PRESENT
DAMAGE, PERSONAL INJURY OR DEATH
. F
. M
AILURE TO DO SO MAY CAUSE PROPERTY
ULTIPLE POWER SOURCES MAY
.
WARNING
HI GH VOLTAGE!
O AVOID PERSONAL INJURY OR DEATH DUE TO
T
ELECTRICAL SHOCK, DO NOT TAMPER WITH FACTORY
WIRING
. THE
OF THESE UNITS ARE FACTORY-INSTALLED AND HAVE
BEEN THOROUGHLY TESTED PRIOR TO SHIPMENT
ONTACT YOUR LOCAL REPRESENTATIVE IF
C
ASSISTANCE IS REQUIRED
INTERNAL POWER AND CONTROL WIRING
.
.
CAUTION
TO
PREVENT DAMAGE TO THE WIRING, PROTECT WIRING FROM
SHARP EDGES
LOCAL CODES AND ORDINANCES
REMOVABLE ACCESS PANELS
. F
OLLOW NATIONAL ELECTRICAL CODE AND ALL
. DO
.
NOT ROUTE WIRES THROUGH
CAUTION
C
ONDUIT AND FITTINGS MUST BE WEATHER-TIGHT TO PREVENT
WATER ENTRY INTO THE BUILDING
.
For unit protection, use a fuse or HACR circuit breaker that is
in excess of the circuit ampacity, but less than or equal to the
maximum overcurrent protection device. DO NOT EXCEED
THE MAXIMUM OVERCURRENT DEVICE SIZE SHOWN
ON UNIT DATA PLATE.
Main power wiring should be sized for the minimum wire
ampacity shown on the unit’s data plate. Size wires in accordance with the ampacity tables in Article 310 of the National
Electrical Code. If long wires are required, it may be necessary to increase the wire size to prevent excessive voltage
drop. Wires should be sized for a maximum of 3% voltage
drop.
CAUTION
O AVOID PROPERTY DAMAGE OR PERSONAL INJURY DUE TO FIRE, USE
T
ONLY COPPER CONDUCTORS.
CAUTION
L
ABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING
CONTROLS
DANGEROUS OPERATION
SERVICING
. W
IRING ERRORS CAN CAUSE IMPROPER AND
.
. V
ERIFY PROPER OPERATION AFTER
NOTE: A weather-tight disconnect switch, properly sized for
the unit total load, must be field installed. An external field
supplied disconnect may be mounted on the exterior panel.
Ensure the data plate is not covered by the field-supplied
disconnect switch.
• Some disconnect switches are not fused. Protect the
power leads at the point of distribution in accordance
with the unit’s data plate.
• The unit must be electrically grounded in accordance
with local codes or, in the absence of local codes,
with the latest edition of the National Electrical Code
(ANSI-NFPA 70). A ground lug is provided for this
purpose. Size grounding conductor in accordance
with Table 250-95 of the National Electrical Code. Do
not use the ground lug for connecting a neutral
conductor.
• Remove plug in panel located at the condenser end
of unit and route conduit to control box. Remove plug
in control box and connect power wiring to the
contactor closest to the entrance. If Single Point kit is
used, refer to Installation Instructions supplied with
kit.
8
LOW VOLTAGE
(
)
)
BLOCK
MAIN POWER
LOW VOLTAGE
ENTRANCE
POWER THRU
THE CURB
CONTROL BOX
WARNING
F
AILURE OF UNIT DUE TO OPERATION ON IMPROPER LINE VOLTAGE
OR WITH EXCESSIVE PHASE UNBALANCE CONSTITUTES PRODUCT
ABUSE AND WILL VOID YOUR WARRANTY AND MAY CAUSE SEVERE
DAMAGE TO THE UNIT ELECTRICAL COMPONENTS
.
Areas Without Convenience Outlet
It is recommended that an independent 115V power source
be brought to the vicinity of the roof top unit for portable lights
and tools used by the service mechanic.
UNITS INSTALLED ON ROOF TOPS
Main power and low voltage wiring may enter the unit through
the condenser end or through the roof curb. Install conduit
connectors at the desired entrance locations. External connectors must be weatherproof. All holes in the unit base must
be sealed (including those around conduit nuts) to prevent
water leakage into building. All required conduit and fittings
are to be field supplied.
Supply voltage to roof top unit must not vary by more than
10% of the value indicated on the unit’s data plate. Phase
voltage unbalance must not exceed 2%. Contact your local
power company for correction of improper voltage or phase
unbalance.
HIGH VOLTAGE ENTRANCE
(REMOVE PLUG)
12 3/8”
RETURN
3.5 DIA.
POWER TH RU
THE CURB
SUPPLY
47 1/2”
ELECTRICAL ENTRANCE AND THRU CURB
4 1/2”
7 1/2”
LOW VOLTAGE CONTROL WIRING
1. A 24V thermostat must be installed for unit operation.
It may be purchased with the unit or field -supplied.
Thermostats may be programmable or
electromechanical as required.
2. Locate thermostat or remote sensor in the conditioned
space where it will sense average temperature. Do
not locate the device where it may be directly exposed
to supply air, sunlight or other sources of heat. Follow
installation instructions packaged with the thermostat.
3. Use #18 AWG wire for 24V control wiring runs not
exceeding 75 feet. Use #16 AWG wire for 24V control
wiring runs not exceeding 125 feet. Use #14 AWG
wire for 24V control wiring runs not exceeding 200
feet. Low voltage wiring may be National Electrical
Code (NEC) Class 2 where permitted by local codes.
4. Route thermostat wires from sub-base terminals to
the unit. Control wiring should enter through the
condenser panel opening indicated in “Electrical
Entrance Locations” figure. Connect thermostat and
any accessory wiring to low voltage terminal block
TB1 in the main control box.
NOTE: Field-supplied conduit may need to be installed
depending on unit/curb configuration. Use #18 AWG solid
conductor wire whenever connecting thermostat wires to
terminals on sub-base. DO NOT use larger than #18 AWG
wire. A transition to #18 AWG wire may be required before
entering thermostat sub-base.
30 1/4”*
TERMINAL THERMOSTAT
Red R (24V)
Green G (Fan)
Orange O (Rev. Valve)
White W1 (He at , 2nd)*
Brown W2 (Heat 3rd)*
Yellow Y (Cool)
* (6 Ton - 34 1/4”)
1:4
LOW VOLTAGE ENTRANCE
*Optional field installed heat connections
9
C
Blu e
CPC/H 036 THROUGH 072
C (Common
Loading...